The temperature on April 18, 1870 was about 16.4 °C. The air pressure was 4 kgf/m2 and came mainly from the south east. The airpressure was 77 cm mercury. The atmospheric humidity was 42%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 6 » The inauguration of the Musikverein in Vienna, Austria.
January 10 » John D. Rockefeller incorporates Standard Oil.
February 25 » Hiram Rhodes Revels, a Republican from Mississippi, is sworn into the United States Senate, becoming the first African American ever to sit in Congress.
March 16 » The first version of the overture fantasy Romeo and Juliet by Tchaikovsky receives its première performance.
August 2 » Tower Subway, the world's first underground tube railway, opens in London, England, United Kingdom.
September 6 » Louisa Ann Swain of Laramie, Wyoming becomes the first woman in the United States to cast a vote legally after 1807.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I55008.php : accessed May 3, 2024), "Helena Heller (1870-????)".
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